Personal computer viruses happen to be all over for many years. The fact is, in 1949, a scientist named John von Neumann theorized that a self-replicated software was feasible [source: Krebs]. The computer marketplace wasn't even a decade aged, and currently anyone had found out how to throw a monkey wrench to the figurative gears. But it took a couple of many years before programmers identified as hackers started to construct personal computer viruses.uk laptop chargerDell laptop BatteryHP laptop BatteryDell laptop adapterHP laptop adapter